Hi Maria-- That sounds to me like a standard modified thinset. Although it COULD be used, I'll tell you right now-- using the 255 would be alot easier, especially for someone DIYing it. It's more expensive, but worth the money.

>>>I do lots of pressure canning with a 23 quart pressure canner. Will the NXR pressure can? Are you asking if the NXR burners are adjustable enough to control or adjust pressure? Sure. I frequently use pressure cookers on mine. Are you asking if the grates can hold up to 40 or fifty pounds of weight (20 quarts of water, the jars, plus whatever you have in the jars)? Sure. Or, are you asking of the NXR's 15k-BTU burners can it bring a big pot to boil? Yup. >>>I noticed I can get the NXR 30 for $1599 from Costco and $1999 from AjMadison. Is there any advantage buying from AjMadison? No. >>> Are these two the same range? Is one a newer model? I think the designation is just for marketing. I don' see anything the specs except that the oven lights are now 25 watt bulbs. The ones in mine are 20 watt halogent bulbs. Maybe the "x" oven light bulbs are different? >>>LP conversion kit ($39) bucks online..... is this easy to install? AJ Madison and others will do the propane conversion for you, but that's an additional $176. I've done propane conversions on a couple of other brands of stoves for friends and thought it was easy. However, I have no first hand experience with the NXR kit. A couple of folks have posted here about having LP conversions on their NXRs. Maybe they will see this question and reply. >>> Anyone have the doors corrode or rust? Not on mine (2.5 years). Others can chime in on this, but I haven't seen any reports of this happening on anybody else's DRGB models, either. . One other point: have you considered getting the middle grate? Some people like it (me, for instance), some people don't care. Price for this extra from Costco seems the same whether ordered with the stove or later.

lenores here are the numbers going down your list. 3705102 Active Systems RHEEM 15PJL SERIES RHEEM MANUFACTURING COMPANY 15PJL36 RHKL-HM3617+RCSL-H*3617 35400 12.50 15.00 34400 8.50 22000 3647377 Active Systems LEGACY 15 PURON HP BRYANT HEATING AND COOLING SYSTEMS 215BNA036****A FV4CN(B,F)005 35000 12.50 15.00 34800 8.80 21200 3647405 Active Systems LEGACY 15 PURON HP BRYANT HEATING AND COOLING SYSTEMS 215BNA036****A FX4DN(B,F)043 34800 12.50 15.00 34200 8.70 21600 3687527 Active Systems PERFORMANCE 15 PURON HP CARRIER AIR CONDITIONING 25HPA536H31 FX4DN(B,F)043 36000 12.50 15.50 36000 8.60 21800 mdl numbers of both outside condenser and inside air handler are important. FV is var speed air handler;FX is fixed speed. For Florida you want var speed. is new refrigerant lineset included? .............. these are my minimum specs for a new HP system. both outside and inside units should be replaced to have a properly matched system. 15 SEER, 12.5+ EER, 9 HSPF best matching VS air handler full BTUs in both cooling and heating for your rated size R-410a refrigerant(same as Puron) scroll compressor preferred electronic demand defrost preferred thermostat with "dehumidify on demand" feature staged backup heat strips new and correctly sized refrigerant lineset you want a thorough inspection of your ductwork system. size, overall condition, supply and return lines, insulation qualities, leak test, etc. any hot/cold spot issues in your home should be addressed. I would only use authorized dealers for the various brands that provide quotes. see mfg websites. I would look at Trane/AmStd,Rheem,Carrier/Bryant. ...... if this was my decision, I would make an offer to Carrier dealer for price quoted including Carrier thermidistat, new lineset, leak test on ducts with repairs as needed, and most of all substitute his air handler for the FV005 var speed air handler. He should also include the 9 KW staged backup heat strip. see below configuration. 3405849 Active Systems PERFORMANCE 15 PURON HP CARRIER AIR CONDITIONING 25HPA536H31 FV4CN(B,F)005 36000 13.00 15.50 36000 9.00 21800 leave yourself a little room to go up not to exceed $6500. voila. you are there. BTW, coastal location or inland? IMO Good Luck!

Like the warm gray. Couldn't find the mist. Bumping up for you.